Cute question. That said, I think that a good strategy might be that you should not allow any hyphenation of "Kronecker". It would be very confusing for any reader to go along and hear about the Kro-
necker delta matrix, and it would also be confusing to be explained that the Kron-
ecker product of matrices is simply their exterior product.
A better approach is the following. Do not worry about things like line breaks until you have completely completed the draft of the paper. Then, at the end, yes, you should go back through and correct bad breaks by hand. Sometimes this means that you should force LaTeX to fit more or less than it wants to in a line. More often, it means that you should rewrite one sentence somewhere to avoid a bad hyphenation.
When you do submit to a journal, they may impose a house style. But you will have a chance at the end to go over the proofs, and you can at that time do a similar one-word-rewrite to fix bad hyphenation.
(I have marked my answer as Community Wiki because, although I think this question is cute, I don't think it's the type of question for which answers should accrue "reputation points". That said, marking the answer CW has the side effect of inviting edits to the answer. So, just to emphasize: by all means please improve ("wiki") this answer, provided you do not change the basic thrust of the answer; if you wish to disagree, post a different answer.)